Now in development — join the waitlist

Know more.
Run further.
Break less.

The performance command centre for serious ultra runners. Daily readiness, fuelling guidance, and training load intelligence — powered by your actual data.

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£15
per month
Any
platform sync
Daily
readiness brief

Your watch knows
everything. It tells you nothing.

You're training for a 50-miler, logging everything, and still guessing whether today should be hard or easy. That's the gap BCKLE fills.

📊

Data without intelligence

Your watch captures hundreds of data points. But it doesn't tell you what to do with them — or when your body is telling you to back off.

🍌

Generic fuelling advice

"Eat every 45 minutes" doesn't cut it for a 100k. You need fuelling plans built around your actual session, weight, and pace — not a blog post average.

📈

Building too fast, too slow

Most ultra injuries are load errors. But knowing whether your ramp rate is dangerous requires maths most athletes never do.

💬

Coaching is expensive

A good ultra coach costs £150–300/month. For runners who don't need a full programme — just daily intelligence — that's a bad deal.

Four things, done brilliantly.

BCKLE isn't a training plan. It's the daily intelligence layer between your data and your decisions.

01 — Readiness

Daily Readiness Brief

Every morning: push, go easy, or rest? Based on your actual HRV, sleep, training load, and what's coming up in your schedule.

"Your acute load is 14% above chronic. Two hard sessions in 48h. Today: 60 min Zone 2 max — don't touch the intervals."
02 — Fuelling

Session Fuelling Plans

Pre-session, during, and recovery nutrition — tailored to exactly what you're doing today. Not a generic spreadsheet. Your session, your body.

"22-mile LSD tomorrow at 7:30/mi. Start loading carbs tonight. Pre: 90g at 5am. During: 60–70g/hr from mile 8. Post window: 30 min."
03 — Load

Training Load Intelligence

Acute vs chronic training load, visualised. Real-time ramp rate. Traffic light warnings before your body sends them. Built for ultra periodisation.

"CTL: 72 → ATL: 86. Ramp rate 19% — amber zone. You're building fast. One more week at this pace and we're looking at injury risk."
04 — Chat

AI Coach, Grounded in Your Data

Ask anything — and get answers based on your actual data, not generic advice. Your numbers, your history, your race on the horizon.

"Am I ready for Race to the Stones in 6 weeks?" "Based on your current CTL of 72 and the 100k target, here's what the next 5 weeks should look like..."

Up and running in two minutes.

No manual logging. No spreadsheets. Just connect your existing data and BCKLE gets to work.

1

Connect your training data

One authorisation. BCKLE connects to wherever you track — Garmin, Strava, Coros, and other major platforms — pulling your training history, HRV, sleep, and schedule automatically. No manual import, ever.

2

Tell BCKLE your goal race

Distance, date, terrain. That's it. BCKLE uses this to contextualise every readiness score and fuelling recommendation.

3

Open the app each morning

Your daily brief is waiting. One screen. Today's readiness, session guidance, and anything worth flagging. Under 2 minutes to read.

4

Ask anything between sessions

BCKLE's AI chat knows your data. Ask about race prep, nutrition, training blocks — and get answers grounded in your actual numbers.

Your data stays yours. BCKLE reads your training data to power your daily brief and recommendations — nothing more. We don't sell it, share it, or use it to train AI models. You can disconnect and delete your data at any time.

Read The Ultra Edge

Weekly performance intelligence for ultra runners. Free on Substack.

Subscribe free → The Ultra Edge

Built for runners who
earn the buckle.

Early access when we launch. £15/month.